Global Patent Index - EP 0272653 A2

EP 0272653 A2 19880629 - Synchronizing circuit.

Title (en)

Synchronizing circuit.

Title (de)

Synchronisationsschaltung.

Title (fr)

Circuit de synchronisation.

Publication

EP 0272653 A2 19880629 (EN)

Application

EP 87118866 A 19871218

Priority

JP 30630986 A 19861224

Abstract (en)

A pulse signal transfer control circuit (TC) is located between an input pulse detecting circuit (11, 12, 13, 14) for detecting the arrival of an externally applied input pulse and outputting an pulse signal with a predetermined pulse width, and an R-S flip-flop (15). The transfer control circuit (TC) prohibits the pulse signal from being transferred to the R-S flip-flop (15) during a period in which the R-S flip-flop (15) is set, a period of generation of a first internal clock signal, and a period of generation of a second internal clock signal, and allows the pulse signal to be transferred to the first R-S flip-flop (15) during period in which the first and second clock signals are not generated and the period in which the first R-S flip-flop (15) is reset.

IPC 1-7

H03K 5/135

IPC 8 full level

H03K 5/135 (2006.01); H04L 7/00 (2006.01)

CPC (source: EP KR US)

H03K 5/13 (2013.01 - KR); H03K 5/135 (2013.01 - EP US); H04L 7/04 (2013.01 - KR)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0272653 A2 19880629; EP 0272653 A3 19890308; EP 0272653 B1 19911106; DE 3774407 D1 19911212; JP H0611132 B2 19940209; JP S63160443 A 19880704; KR 880008563 A 19880831; KR 910002043 B1 19910330; US 4797574 A 19890110

DOCDB simple family (application)

EP 87118866 A 19871218; DE 3774407 T 19871218; JP 30630986 A 19861224; KR 870014839 A 19871223; US 13362287 A 19871216